Ask Question
13 December, 05:05

calculate the time taken to raise the temperature of 1.5 kg of water in a kettle from 15°C to 100°C given that specific heat capacity of water is 4200 J/kg/K and the heater is rated 250V, 2kW

+3
Answers (1)
  1. 13 December, 08:01
    0
    270 s or 4.5 min

    Explanation:

    First find the amount of heat needed:

    q = mCΔT

    q = (1.5 kg) (4200 J/kg/K) (100 - 15) K

    q = 535,500 J

    q = 535.5 kJ

    Power is energy per time.

    P = E / t

    2 kW = 535.5 kJ / t

    t = 270 s
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “calculate the time taken to raise the temperature of 1.5 kg of water in a kettle from 15°C to 100°C given that specific heat capacity of ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers